Channel-flap-turning machine.



, G. L. ROLLINS.

CHANNEL FLAP TURNING MACHINE.

APPLICATION FILED ourv s 1013.

1 ,1 20,335. Patented Dec. 8, 1914.

2 SHEETS SHEET 1.

WT $y lnvenIor.

520 95, gig-29% 9 y d Alty'sl GEORGE L. ROLLINS, 01? MANCHESTER, NEW HAMPSHIRE.

CHANNEL-FLAlP-TURNING MACHINE.

Specification of Letters Patent.

Patented Dec. 8, 1914.

Application filed October 3, 1918. Serial No. 798,096.

To all whom it may concern:

Be it known that I, Gnonoa L. Romans, a citizen of the United States. and residing at Manchester, county of Hillsboro, State of New Hampshire, have invented an Improvement in Channel-Flap-Turning Machines, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to improvements in channel flap turning machines for inner soles. In order to attach an inner sole to the upper of the shoe a channel is cut in the upper face of the sole a short distance from the edge thereof. In cutting this channel the knife is held at a sharp angle to the plane of the sole, thereby forming a relatively \vide flap or lip which is subsequently turned up into substantially vertical position. The upper is sewed to this channel flap. In forming the gem inner soles a comparatively thin leather is used which is reinforced by a lining of canvas firmly attached thereto. the edges of the canvas being made to extend upwardly along the turned up lip or channel flap.

It is desirable that the channel flap should be turned uniformly into a substantially \o veal position in order that it may be easilv secured to the shoe upper, and furthermore it is especiallv desirable that it should be ina substantially vertical position in the gem type of inner sole in order that the canvas may be conveniently secured to the inner sole and to the inner face of the upturned lip or flap.

One of the objects of the present invention is to provide suitable mechanism for uniformly turning the channel flaps upward to an upright or substantially normal position in respect to the plane of the upper surface of the inner sole.

Another object of the invention is to provide in a channel flap turning machine means operating in conjunction with the flap turning means for positively feedin the work during the progress of the channe fla p turning operation in such a manner that the flap will not become distorted.

Another object of the invention is to provide a channel fiap turning tool which will engage the bottom of the channel and also the under side of the flap in such a manner as to assist in feeding the work during the channel flap turning operation.

Another object of the invention is to provide means for adjustably supporting the work relative to the channel flap turning tool in such a manner as to provide for operating upon inner soles of different thickness, and also to permit the ready insertion and withdrawal of the work.

Other objects of the invention will more fully appear from the following description and the accompanying drawings, and will be more particularly pointed out in the appended claims.

In the drawings; Figure '1 is a side elevation of a preferred form of channel flap turning machine embodying my invention; Fig. 2 is a front elevation of the same; Fig. .3 is a detail side elevation of the channel flap turning tool and portions of thework support and guide cooperating therewith, and showing a section of inner sole from which the channel flap is bein turned upwardly: Fig. 4 is a plan view 0% the channel flap turning tool; Fig. 5 is a bottom or end view of the channel flap turning tool, and Fig. 6 is a detail sectional view of a portion of the supporting frame showing the relative positions of the guide and the work support, and a guard adapted to prevent injury to the operators hand.

In the drawings 1 is a suitable bed plate, preferably rectangular in form and having a boss 2 arising therefrom. The main frame which supports the operating parts comprises a substantially C-shaped member 3 having at its lower portion lateral extending flanges 4 by which it is secured to the boss 2 of the base plate in any suitable manner as by bolts 5. The forwardly projecting lower portion of the main frame 3 is provided with bosses 6 and 7 in which are journaled respectively the shaft 8 of a rotatable guide 9 and the shaft 10 of a rotatable work supporting disk 11. The upper forwardly projecting portion of the main frame 3 is provided with a boss 12 which is in alinement with the boss 6 and contains the upper hearing for the shaft 8 through which the work support, work guide, and the channel flap turning tool are rotated. The forwardly projecting portion of the main frame 3 is also provided with an upwardly and laterally extending member 13 to which is pivotall attached a bell crank lever, one arm 14 0 which is provided with. boss in which is journaled a shaft 15 carryin a rotating channel flap turnin tool 16 w ich will be hereafter more fu 1y described. To the other arm 17 of the bell crank lever is attached a link 18 which is attached in turn to a lever 19 provided with a downwardly extending link 20 leading'to a pedal or other suitable mechanism adapted to be operated by the foot. It will thus be a parent that upon a depression of the pedal the arm 17 of the bell crank lever will move downwardly raising the arm 14, and with it the rotating channel flap turning tool.

The channel flap turning tool 16 is pressed forward to its work as will be hereafter more fully described, by a spring 21 which is attached at one end to the arm 14 and at its opposite end to a bolt 23 having a thumb nut, whereby the tension of the spring and consequently the pressure to the tool against the work may be adjusted. The extent of movement of the tool toward the guide is preferably limited by an adjusting set screw 24.-

In order to provide for the uniform feeding of the work and .turning of the channel flap it has been found desirable to rotate the guide for the edge of the inner sole, the work support, and the channel flap tool at substantially the same peripheral speed, and this is accomplished in the machine illustrated in the drawings, as follows. A main shaft 25 is journaled in bearings, which as illustrated herein are detachably secured to the main frame 3 of the machine, said shaft being provided with a worm adapted to mesh with the gear 26 upon one end of a counter shaft 27 suitably journaled in a boss in the vertical position of the main frame and having at its other end a beveled gear 28 which engages a companion gear 29 rigidly secured upon the shaft 8. Upon the lower end of the shaft 8 a gear 30 is provided which is adapted to engage a suitable companion gear 31 upon the shaft 10 of the work support 11. At the upper end of shaft 8 a gear 32 is provided which engages a companion gear 33 rigidly mounted upon the shaft 15' which carries the rotating channel flap turning tool 16. The ratios of the various gears above described are such as to drive the work supportlll, and guide 9 and the channel flap turning tool 16 at the same peripheral speed. a

The work support is yieldably mounted to provide for the ready insertlon of the work and to adapt the machine for use upon soles of different thicknesses. In the preferred embodiment of my invention shown herein, the shaft 10 of the work support passes through a sleeve 34 which is slidably mounted in the boss 7. A considerable portion of the sleeve 34 which is inclosed in the boss is turned down as at 35 to provide a chamber for the rece tion of a spiral spring 36. One end of sai spring rests upon the base of the boss and its other end engages the shoulder of the slidable sleeve at the end of the turned down portion. The sleeve 34 is rovided with a lateral projection 37 WlllCll enters a slot 38 near the end of the lever 19 which is connected with a. pedal, as above described. It will thus be apparent that upon the depression of the pedal the channel flap turning tool will first be removed from its operating position, and the work support subsequently lowered, thus providing ample room for the insertion and removal of the work.

In order to prevent disengagement of the driving gears 30 and 31 by reason of the depression of the work support, a set screw 39 is mounted in the bed plate in such a manner that it may be projected above the face of the bed plate to engage the end of the shaftlO and limit its depression.

The guide 9 for the edge of the sole has a substantially cylindrical portion 40 adapted to contact with the edge of the sole, and above said cylindrical portion an annular beveled rib41 adapted to cooperate with the faces of the channel flap turning tool 16 to bend and set the channel flap, as will be hereinafter described.

The shaft 15 is provided with an axial recess for the insertion of the shank of the channel flap turning tool 16 and the latter is secured in said recess by a set screw 42 or other suitable clamping means. The channel flap turning tool 16 is of a peculiar and novel construction which adapts it to turn the flap while maintaining the position of the sole properly in respect to the guide and work support, and also to assist in the feeding of the sole during the flap turning operation. It comprises a shank 50 terminating in a pair of oppositely arranged super osed frusto-conical members 51 and 52, the lbwer member 52 being of considerably smaller diameter than the upper member 51. The base 53 of the member 52 is flat and is adapted to contact with the bottom of the channel, and thereby press the sole firmly against the work support. The edges of. the member 52 are serrated and the pitch of the cone is such as to permit the teeth 54 to engage the extremity of the channel. By reason of the lateral pressure against the tool caused by the s ring 21 above described, the teeth engage t e extremity of the channel and cooperate with the rotating guide to feed the sole forward. The upper reversely arranged frusto-conical member 51 is of greater size and steeper pitch and serves to turn the channel flap over the beveled edge 41 of the guide. It is likewise provided with serrations, but fewer in number than those on the member 52. The sharp edges 55 of the serrations in the member 51 engage the upturned flap and produce a strain thereon which tends to set the flap in an upright position, and also to assist in feeding the work forward.

In order to prevent injury to the hands of the operator a plate 60 is attached to the frame of the machine above and immediately in front of the channel flap turning tool. Its lower portion is preferably bent at substantially right angles, as at 61, to provide a wide and effective guard for the rotating tool.

In operating the machine the pedal is depressed first to cause the outward movement of the tool and then to cause the lowering of the work support for the reception of the work. The inner sole is then placed upon the work support, the pressure upon the pedal removed, and the parts permitted to assume normal osition. Simultaneously with the return 0 the work support and the channel flap turning tool to their normal positions the driving mechanism is set in operation in any well known manner and rotation given to the parts above as described. The edge of the sole is forced by the channel flap turning tool against the eylindrical portion 40 of the guide 41 and by reason of the uniform speed of rotation of the rotating work support, the guide 41, and the channel flap turning tool 16, is speedily and accuratel fed through the machine. Inasmuch as t e work support and the channel flap turning tool are thus yieldingly mounted they readil accommodate themselves to soles of di erent thicknesses and also to those in which the channel is at a grleater or less distance from the edge of the so e.

In passing through the machine the base of the channel is pressed firmly by the spring of the work support against the flat base of the rotating channel flap turning tool 16. The serrated edges of the lower member 52 engage the channel at its deepest point and serve to aid in feeding the work forward while the overhanging portion of the upper member 52 bends the channel flap sharply over the beveled edge 41 of the rotating guide 9. The cooperation of these parts which move at the same peripheral speed is such that the channel fla is speedily and efi'ectively turned u war in a substantially right angle to t e plane of the inner sole. Upon the completion of the flap turning operation the pedal is again depressed and the inner sole removed from the machine.

Having fully described my invention what I claim as new and desire to secure by Let ters Patent is:

1. In an apparatus of the class described a horizontal rotary work supporting member, an unyielding rotary guiding member,

a rotary channel flap turning member having a conical base portion adapted to engage the extremity of the channel and a flat ase portion adapted to press the work upon the work supporting member, an inverted conical flap engaging portion and means for rotating said members at substantially the same lperipheral speed.

2. ii an apparatus of the class described a substantially horizontal work supporting member, an unyielding rotary guiding member adapted to engage the edge of an inner sole, a rotary flap turning member having a conical base portion adapted to engage the extremity of the channel, an inverted conical flap engaging portion, means for yieldingly pressing said channel flap turning tool toward said guide and means for positively rotating said members at substantially the same eripheral speed. a

3. Iii an apparatus of the class described comprising a supporting frame, a ieldable rotary work support, and an unyie ding rotary guide, a rotary channel flap turning tool having a conical base portion adapted to engage the extremity of the channel and a serrated inverted conical flap engaging portion, means for yieldingly pres ing said tool toward said guide, and means for positively rotating said guide and said tool at substantially the same peripheral speed.

4. In an apparatus of the class describe( a supporting frame and work support, an a rotary work guide, a bell crank lever pivotally mounted upon said frame and having journaled upon one arm thereof a rotary channel flap turning tool. means normally adapted to hold said rotary channel flap turning tool yieldingly in cooperating relation to said guide, means for separating said tool and guide, and means for rotating said channel flap turning tool.

5. In an apparatus of the ciass described comprising 'a rotary flap turning tool having a flat face and oppositely disposed conical members presenting an angular groove adapted to engage the flap, a rotary guide having'an angular rib disposed opposite to said angular groove, a rotary Work support. and means for permitting a relatively yielding movement between said rotary support and said rotary 'channel flap turning tool whereby the work is normally clamped tightly between the surface of the rotary work support and flat under face of said rotary channel flap turning tooi.

6. In an apparatus of the class described a rotary flap turning tool having oppositely disposed conical flap engaging members presenting an angular groove adapted to engage the channel flap, a rotary guide ha ving an angular rib disposed opposite to said angular groove, a rotary work support, means for permitting a relatively yielding movement between said rotary work support and said rotary channel flap turning tool whereby the work is normally clampe tightly between the surface of said rotary work support and the flat face of said rotary channel flap turning tool and means for separating said rotary work support and said rotary channel flap turning tool to permit the insertion of the work.

7. In an apparatus of the class described, a rotary work support to receive and support an inner sole, a rotary flap turning tool comprising a pair of reversely arranged serrated superposed frustoconical members, the base of one of said members being adapted to clamp the inner sole against a rotary work support and the edge thereof to engage the bottom of the channel and the inside of the fla a rotary edge guide abutting the edge 0 the inner sole 0 posite the said tool, and means for positive y rotating said work supporting edge guide and too whereby the inner sole is positively fed into the machine and the flap turned into an upright position.

8. In an apparatus of the class described, a rotary work support to receive and support an innersole, a rotary flap turning tool comprising a pair of reversely arranged serrated superposed frusto-conical members adapted to clamp the innersole against the rotary work support and to engage the bottom of the .channel and the inside of the flap, a rotary edge guide abuttin the edge of the innersole opposite the sai tool, and means for relatively and yieldably forcing the tool and the guide and the work support into engagement with the innersole.

9. In an apparatus of the class described, a rotary work support to receive and support the innersole and a rotary channel flap turning tool comprising a pair of reversely arranged serrated super osed frusto-conical members adapted to c amp the innersole against the rotary work support and to engage the bottom of the channel and the underside of the fla a rotary edge guide abutting the edge 0 the innersole opposite said tool, and means adapted to cause the peripheral portion of said tool guide and support in engagement with the work to more at substantially the same linear s eed.

10. In a channel flap turning machine a turning tool comprising a pair of reversely arranged superposed frusto-eonical members presenting a flat base and an adjacent r .4 new, wasagrwsnswmew angular groove adapted respectively to engage the bottom of the channel and the underside of the flap.

11. In a channel flap turning machine a turning tool comprising a pair of reversely arranged superposed frusto-conical members having a fiat base and presenting an angular groove adjacent thereto, the surface of the upper member having a steeper pitch than that of thelower member whereby the lower conical member is adapted to enter the channel to the extremity thereof and the superposed member to engage the under face of the flap and to turn the same upwardly substantially as described.

12. In a channel flap turning machine a turning tool comprising a pair of reversely arranged superposed serrated frusto-conical members adapted to engage the bottom of the channel and the underside of the flap.

13. In a channel flap turning machine for innersoles a turning tool comprising a shaft having on one end a pair of reversely arranged serrated superposed connected frusto-conical members adapted respectively to engage the bottom of the channel and the under side of the flap, the member engagi the channel being of lesser diameter an thinner than the companion member.

14. In an apparatus of the class described, a rotary guiding member, having an annular beveled projection, a rotatable work support mounted upon a shaft substantially parallel to the shaft which supports the rotatable guiding member, and a channel flap turning tool yieldably mounted relative to the work guide, said tool comprising a pair of reversely arranged superposed serrated frusto-conical members, and so disposed that the angular projection of the guiding member is adapted to enter in between the reversely arran ed conical surfaces whereby the channeI flap will be turned over the angular projection of the guiding member into a position substantially at right angles to the plane of the sole.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

GEORGE L. ROLLINS.

Vitnesses FREDERICK A. TENNANT, Trxonus J. DRUMMOND. 

